My Economy version, Can drive like a monowheel, but can fly as well. The elevon doesn't move, just keeps the craft balanced. (can be modified for kerbal use)
My entry, It wasn't originally made for the challenge. But it works. (Uploaded on my KerbalX account: https://kerbalx.com/Dexter_Nexter/DX-Motor-Co-771-----1983-SWR-Sprinter ) ( I don't think azimech knows about my KSP forum account)